Audio Controlled Relay
The ST-ACR2 is an Audio Controlled Relay in the STICK-ON® series. These products are designed for quick, convenient installation, and reliable operation in a variety of control applications. The ST-ACR2 is designed to switch on line level sources.Two multiturn trimmers are provided. The SENS potentiometer adjusts the audio input sensitivity. A threshold LED facilitates accurate adjustment.
The module can be set to trigger on signals between -30 dBu and 0 dBu. The DELAY control sets the time required for the relay to release when the audio drops below the threshold.The delay adjustment range for the ST-ACR2 is from 5 seconds to 50 seconds.
- Switching Controlled by Audio Signal
- Sensing of Line-Level Signal
- Silence Sensing
- DPDT Switching Contacts
- Open-Collector SLAVE Output
||May be connected balanced or unbalanced
Control Output: Open-collector @ 25 mA suitable to drive indicators or slave LCR relay
||Audio threshold LED (for setting sensitivity)
|Max. Switching Power:
||60 W, 125 VA
|Max. Switching Voltage:
||220 VDC, 250 VAC
|Max. Switching Current:
|Activation Response Time:
||-30 dBu to 0 dBu (adjustable)
|Relay Release Delay:
||5 sec. to 50 sec. nominal (adjustable)
|Ambient Operating Environment:
||0° C to 55° C
||GROUND-REFERENCED, 24 VDC @ 50 mA*
* Assumes 20 mA max load at SLAVE output
||Height: 0.7" (1.7 cm), Width: 3" (7.6 cm), Depth: 1.6" (3.9 cm)
||2" x 2" x 4"
|MCM Part #:||555-ST-ACR2|
|Radio Design Labs Part #:||ST-ACR2|
|Package Specifications & Dimensions|
Need to Return?
|Extra Shipping Charge:||No|